3-aminopyrazolo[3,4-d]pyrimidine derivatives and production...

Details 3-aminopyrazolo[3,4-d]pyrimidine derivatives and production... 3-aminopyrazolo[3,4-d]pyrimidine derivatives and production...

C - Chemistry, Metallurgy

07

D

167/220, 260/242

C07D 487/04 (2006.01) A61K 31/505 (2006.01)

Patent

CA 1263386

A B S T R A C T Novel 3-aminopyrazolo[3,4-d]pyrimidine derivatives represented by the general formula (I) Image wherein R1 and R2 each represents an aliphatic hydrocarbon group; R3 and R4 each represents hydrogen, alkyl or acyl; R5 is alkyl, alkoxycarbinyl or formyl; and the dotted line designates the presence of two double bonds on the pyrazole ring, to which R5 is linked at either the 1- or 2- position and their salts, are useful for antiinflammatory, analgesic and antipyretic agents.

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